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S&W Revolvers: 1980 to the Present All NON-PINNED Barrels, the L-Frames, and the New Era Revolvers


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Old 05-19-2011, 01:31 PM
BUFF BUFF is offline
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Default M-629 Classic Oddity

While shooting this week, a good friend asked me about the shape of the fired primers in his ammunition shot in his M-629-5 Classic. The spent primers had a concave shape, that is, they were lower in the center and higher around the edges, visibly so. His unfired primers looked normal. Not cratered, not typical signs of high pressure.

Looking at his revolver, it seems that the firing pin bushing's surface is not flat, it is convex, that is, it is higher in the center, around the firing pin hole, than on the edges. The bushing face is smooth, the bushing looks like it was manufactured this way.

He and another friend bought their Classics at the same time, and he said that the other shooter's gun produced fired primers that looked the same.

The gun functioned normally.

I looked at a couple of my guns from the same era and didn't see the same thing on any of them.

Anyone else ever see this?
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Old 05-20-2011, 02:47 AM
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I have a 629-3 Classic and the bushing around the FP hole is perfectly flat. The serial # is BKK15xx.
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Old 05-20-2011, 11:21 AM
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Yes, I have owned / seen several late mfg'd "N" frame that have the concave firing pin bushing. It does make the spent primers look a little odd, but I have never seen any problems with them.
My 629-6 and my 625-8 both that way.
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